It should be humorously noted that the MorphOS team WROTE THEIR OWN for dedicated PPC hardware in less than the time it's taking Hyperion to PORT theirs to antiquated Amiga hardware.
Eh? You do realise that the whole MorphOS project was started in the 90's? The OS4 project didn't begin untill a couple of years ago - MorphOS by then was already in public beta!
but the choice (probably not their own) to write for the old PPC cards first was simply stupid.
It's what happened with MorphOS.